Which tool for full-system scan + special functions + IMMO?

Looking for full diagnostic for all brands.. service resets-electronic brake reset etc, Also it is good if we can have access on immobilizer to program ECU or keys. Which tool better? any experience?

I have Auro OtoSys IM600. but OtoSys im100 is good to just small screen. im 100 and maxisys are sister companies. im 100 use same diagnostic software as maxisys but OtoSys IM600 & IM100 have immo functions as well.

Quote the comparison table between Auro OtoSys IM600 & OtoSys im100:

Incl. IMMO, Programming, diagnostics, service functions, features.